Apple Software Update - "Server could not be found"

Hi, hope someone can help please?

Apple Software Update suggested that I update it (Apple Software Update) to a newer version (which turns out to be Vers 2.2)

I did this and install seemed to go OK, then when Apple Software Update ran again (and every time since) it comes up with an error message: "The Apple Software Update Server could not be found. Check your internet settings and try again."

So my network / internet and everything else on my machine works fine, but for some reason the new version of the apple update app is spitting it's dummy and can't access the internet!

I've re-booted my machine, repaired the application via control panel, checked firewall settings and turned it off all together, but to no avail. Couldn't find anywhere on the apple software download site as to where I can re-download / install it either, or I would have given that a go.

Anyone have any suggestions how I can solve this? It's really annoying!

If not, anyone know how to roll it back to the previous version?

My PCs running Win 7 Professional 64 bit

Thanks in advance all

Psyman